IPA: /nɒnˈrʌbər/
KK: /nɑnˈrʌbər/
Describing something that is not made from rubber material.
The nonrubber materials used in the construction are more durable.
Nonrubber → It is formed from "non-" (meaning not) and "rubber" (from the English word for the elastic substance derived from the sap of rubber trees). The word "nonrubber" means not made of rubber or lacking rubber properties.
Think of 'non-' meaning not, and 'rubber' being the elastic material. This helps you remember that 'nonrubber' refers to something that is not made of rubber.